_________ with a difficult situation, Arnold decided to ask his boss for advice.
It was five o'clock in the afternoon __________ they climbed up to the top of the mountain.
—Did you remember to give Tom the book you borrowed from him? —Yes, I gave it to him __________ I saw him.
Busy __________ she is, Rita sets aside two hours every Sunday afternoon to spend with her son.
Mr. Brown arranged for the taxi to come at six __________ he would not have to wait long at the station.
__________ this is true in theory, it's very different in practice.